Correlation effects on the electron-phonon interaction

B. I. Min; J. D. Lee; Kicheon Kang

doi:10.1016/0921-4526(94)00571-C

Correlation effects on the electron-phonon interaction

B. I. Min
, J. D. Lee
, Kicheon Kang

Department of Physics and Chemistry

Pohang University of Science and Technology

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The electron-phonon coupling constant (λ_ph) is evaluated for the Hubbard Hamiltonian system. It is found that the Coulomb correlation in the Hubbard model gives rise to a phonon hardening and an enhancement of λ_ph. It is alos found that λ_ph becomes larger than the electron-spin-fluctuation coupling constant λ_sf for a correlated system with a nearly filled band.

Original language	English
Pages (from-to)	736-738
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	206-207
Issue number	C
DOIs	https://doi.org/10.1016/0921-4526(94)00571-C
State	Published - 1 Feb 1995

Bibliographical note

Funding Information:
This work was supported by the POSTECH-BSRI program of the Korean Ministry of Education.

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10.1016/0921-4526(94)00571-C

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title = "Correlation effects on the electron-phonon interaction",

abstract = "The electron-phonon coupling constant (λph) is evaluated for the Hubbard Hamiltonian system. It is found that the Coulomb correlation in the Hubbard model gives rise to a phonon hardening and an enhancement of λph. It is alos found that λph becomes larger than the electron-spin-fluctuation coupling constant λsf for a correlated system with a nearly filled band.",

author = "Min, \{B. I.\} and Lee, \{J. D.\} and Kicheon Kang",

note = "Funding Information: This work was supported by the POSTECH-BSRI program of the Korean Ministry of Education.",

year = "1995",

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doi = "10.1016/0921-4526(94)00571-C",

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T1 - Correlation effects on the electron-phonon interaction

AU - Min, B. I.

AU - Lee, J. D.

AU - Kang, Kicheon

N1 - Funding Information: This work was supported by the POSTECH-BSRI program of the Korean Ministry of Education.

PY - 1995/2/1

Y1 - 1995/2/1

N2 - The electron-phonon coupling constant (λph) is evaluated for the Hubbard Hamiltonian system. It is found that the Coulomb correlation in the Hubbard model gives rise to a phonon hardening and an enhancement of λph. It is alos found that λph becomes larger than the electron-spin-fluctuation coupling constant λsf for a correlated system with a nearly filled band.

AB - The electron-phonon coupling constant (λph) is evaluated for the Hubbard Hamiltonian system. It is found that the Coulomb correlation in the Hubbard model gives rise to a phonon hardening and an enhancement of λph. It is alos found that λph becomes larger than the electron-spin-fluctuation coupling constant λsf for a correlated system with a nearly filled band.

UR - https://www.scopus.com/pages/publications/4244173467

U2 - 10.1016/0921-4526(94)00571-C

DO - 10.1016/0921-4526(94)00571-C

M3 - Article

AN - SCOPUS:4244173467

SN - 0921-4526

VL - 206-207

SP - 736

EP - 738

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - C

ER -

Correlation effects on the electron-phonon interaction

Abstract

Bibliographical note

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